[SOLVED] How to call a function in CMake whose name is stored in a variable

Issue

Is there a way to call a function in CMake using the name that is stored in a variable (for passing functions to functions, etc)?

Here is what I have tried:

cmake_minimum_required(VERSION 3.0)

function(doThing)
endfunction()

set(FuncVar doThing)

${FuncVar}()

Which fails with this error:

Parse error.  Expected a command name, got unquoted argument with text "${FuncVar}".
-- Configuring incomplete, errors occurred!

I can't see why this shouldn't work, but then again I am new to CMake so what do I know.

Thank you for any help!

Solution

I have solved this with a workaround using files.

Lets say you have:

function(do what)
  ...
endfunction()

You want to call different specializations depending on 'what'. You can then do:

function(do what)
  include("do-${what}.cmake")
  do_dynamic()
endfunction()

And in file do-something.cmake:

function(do_dynamic)
  ...
endfunction()

You can create as many specialization files as you want...

Answered By - Meros

Answer Checked By - Terry (WPSolving Volunteer)